Sofa



FIG. 1 is a top front isometric view of the sofa.

FIG. 2 is a bottom front isometric view of the sofa.

FIG. 3 is a front elevation view of the sofa.

FIG. 4 is a top plan view of the sofa.

FIG. 5 is a top front isometric view of the sofa.

FIG. 6 is a side elevation view of the sofa; and,

FIG. 7 is another side elevation view of the sofa. 

CLAIM The ornamental design for a sofa, substantially as shown. 